Figure 3

Lesions in mesenteric lymph nodes. Enlarged lymph node with focal necrosis and calcification (A, goat 9, bar = 1 cm), granuloma with extensive necrosis and calcification (B, goat 38, HE, bar = 500 μm). Small foci of granular staining for mycobacteria possibly associated with a degenerated cell were seen in granulomas of most goats (C, goat 11, immunohistochemistry MAP, bar = 10 μm), numerous mycobacteria throughout granulomas in 4 goats (D, goat 19, immunohistochemistry MAP, bar = 10 μm).